Maximal Jaw Opening as a Method of Producing Concurrent Activation Potentiation

Charles R. Allen

Abstract


Purpose: The purpose of this study was to examine maximal jaw opening as a strategy to elicit concurrent activation potentiation during countermovement vertical jump performance and bilateral grip strength assessment in both males and females. Methods: Twenty-four males (age 21.25 ± 1.45 years; height 177.64 ± 7.67 cm; mass 83.87 ± 9.08 kg) and 24 females (age 21.38 ± 2.12 years; height 165.84 ± 8.96 cm; mass 66.4 ± 13.42 kg) participated in this investigation. Maximal countermovement jump height was recorded using a Just Jump Mat, and dominant and non-dominant handgrip strength was recorded using a digital hand dynamometer under two experimental conditions: jaw relaxed and jaw maximally opened. Paired-sample t-tests were conducted for each dependent variable of interest to determine the differences between the research conditions. Results: Maximally opening the jaw led to improvements in vertical jump height (p = 0.013, d = 0.225), dominant hand (p = 0.028, d = 0.162), and non-dominant handgrip strength (p = 0.011, d = 0.241) in males, and although these variables were improved in females under the jaw open condition, that improvement did not reach statistical significance (p > 0.05). Conclusion: This study supports maximally opening the jaw as an effective strategy for producing concurrent activation potentiation, particularly in males.

Keywords


Remote Voluntary Contraction, Vertical Jump, Hand Strength, Ergogenic, Concurrent Activation Potentiation

Full Text:

PDF

References


Allen, CR, Fu, YC, Cazas-Moreno, V, Valliant, MW, Gdovin, JR, Williams, CC, and Garner, JC. (2018). Effects of jaw clenching and jaw alignment mouthpiece use on force production during vertical jump and isometric clean pull. Journal of Strength and Conditioning Research, 32(1), 237–243.

Allen, CR, Fu, YC, and Garner, JC. (2016). The effects of a self-adapted, jaw repositioning mouthpiece and jaw clenching on muscle activity during vertical jump and isometric clean pull performance. International Journal of Kinesiology and Sports Science, 4, 42–49.

Busca, B, Morales, J, Solana-Tramunt, M, Miro, A, and Garcia, M. (2016). Effects of jaw clenching while wearing a customized bite-aligning mouthpiece on strength in healthy young men. Journal of Strength and Conditioning Research, 30, 1102–1110.

Cherry, EA, Brown, LE, Coburn, JW, and Noffal, GJ. (2010). Effect of remote voluntary contractions on knee extensor torque and rate of velocity development. Journal of Strength and Conditioning Research, 24, 2564–2569.

Ebben, WP. (2006). A brief review of concurrent activation potentiation: theoretical and practical constructs. Journal of Strength and Conditioning Research, 20, 985–991.

Ebben WP, Fauth ML, Petushek EJ, Garceau LR. (2010). Electromyographic analysis of concurrent activation potentiation. Medicine and Science in Sports and Exercise, 42, 556-562.

Ebben, WP, Flanagan, EP, Jensen, RL. (2008). Jaw clenching results in concurrent activation potentiation during the countermovement jump. Journal of Strength and Conditioning Research, 22, 1850-1854.

Ebben, WP, Kaufmann, CE, Fauth, ML, Petushek EJ. (2010). Kinetic analysis of concurrent activation potentiation during back squats and jump squats. Journal of Strength and Conditioning Research, 24(6), 1515-1519.

Ebben, WP, Leigh, DH, Geiser, CF. (2008). The effect of remote voluntary contractions on knee extensor torque. Medicine and Science in Sports and Exercise, 40(10), 1805-1809.

Faul, F, Erdfelder, E, Buchner, A, Lang, AG. (2009). Statistical power analyses using G*Power 3.1: Tests for correlation and regression analyses. Behavior Research Methods, 40(4), 1149-1160.

Garceau, LR, Petushek, EJ, Fauth, ML, Ebben, WP. (2012). Effect of remote voluntary contractions on isometric prime mover torque and electromyography. Journal of Exercise Physiology Online, 15(4), 40-46.

Garceau, LR, Petushek, EJ, Fauth, ML, and Ebben, WP. (2010). The acute time course of concurrent activation potentiation. Proceedings of the 28th Conference of the International Society of Biomechanics in Sports, 499-502.

Hiroshi C. (2003). Relation between teeth clenching and grip force production characteristics. Kokubyo Gakkai Zasshi, 70, 82-88.

Kahneman, D. (1973). Attention and Effort. Englewood Cliffs, NJ: Prentice-Hall, Inc.

Mullane, MD, Maloney, SJ, Chavda, S, Williams, S, and Turner, AN. (2015). Effects of concurrent activation potentiation on countermovement jump performance. Journal of Strength and Conditioning Research, 29, 3311–3316.

Takahashi, T, Ueno, T, Ohyama, T, and Nakamura, Y. (2001). Modulation of H reflex of pretibial and soleus muscles during mastication in humans. Muscle Nerve, 24, 1142-1148.

Zehr, EP, Stein, RB. (1999). Interaction of the Jendrassik maneuver with segmental presynaptic inhibition. Experimental Brain Research, 124, 474-480.




DOI: http://dx.doi.org/10.7575/aiac.ijkss.v.7n.3p.1

Refbacks

  • There are currently no refbacks.




Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

2013-2019 (CC-BY) Australian International Academic Centre PTY.LTD.

International Journal of Kinesiology and Sports Science

You may require to add the 'aiac.org.au' domain to your e-mail 'safe list’ If you do not receive e-mail in your 'inbox'. Otherwise, you may check your 'Spam mail' or 'junk mail' folders.